Sharing cards would make it impossible to keep track of spending properly, which means a risk of fraud. This is why all cards are personal and not encouraged to share.
It is easy to add card holders to your Mynt account and the card itself is free of charge. Order cards for all your employees and add individual purchase limits that can easy be edited on a daily basis if necessary.
Every card is connected to a person and their id-number.
As soon as you are signed-up to Mynt you can handout virtual cards that can be used online and added to your Apple or Google wallet.